Diamonds are the most popular gems, they are designed such as they are the heart of engagement rings. Even before a diamond can grace your ring it still needs to be polished. After the diamond is cut in certain angles and polished thoroughly it gets the shine and sparkle we desire. In this blog, we understand how diamonds are cut and polished and make sure that all the diamonds used in our jewellery have the utmost shine.
Diamond cutting and polishing is the process where an ordinary raw diamond is cut and polished to give it a brilliant look to fit into the engagement ring. This process takes time and needs skill and specific tools for getting an excellent outcome.
We outline how diamonds are cut and polished:
In the case of a mined diamond or lab-grown diamond, the process of transformation begins with an assessment of the rough diamond. A Sarine machine scans the rough stone during the evaluation process. What this machine offers is a high-definition image of the unpolished diamond in a 3D manner. The 3D model provides an analyst with clarity and colour information, as well as any predicted inclusions in the diamond.
Diamond cut is one of the four C’s processes through which the characterization of a diamond is done. Finally, for a diamond to possess the best cut, a diamond cutter can cleave or teeth the rough diamond. Cleaving is a traditional diamond cutting technique that requires the splitting of a rough diamond along junctures called diamond grain or along the line having weaknesses. Pressing a blunt edge into a sharp groove along the grain of the steel will result in great cutting-edge stiffness. The steel blade is then struck in a precise manner to cleave the diamond in two.
Although cleaving is still an effective technique at some point, like every technique, this method has some dangers. An oversight during these steps can cause harm to the diamond or lead to unwarranted waste of the material.
Sawing requires no preservation of the natural grains and provides ease in shaping the diamonds by the required forms. Sawing can be done but with diamond-tipped saws or lasers. It is noteworthy that sawing is the most suitable method for improving control and accuracy during the use of diamonds for processing.
After cleaving or sawing is done the diamond will go through the bruiting stage commonly known as the girdling stage. In this stage, the diamond is cut into the form that was agreed upon during the evaluation process to maximize its carrying capacity. In the course of bruting, the diamond is held in place with a special lathe, while its sides are rubbed against another diamond. This gives shape to the diamond and creates the girdle – a thin ridge that separates the upper part (crown) and the lower part (pavilion) of the cut gemstone.
Diamond facets are the flat surfaces that form an angle on the diamond. Every part is cut to perfection to display and bounce light back into the diamond. The number of facets a diamond will have will depend on the diamond shape, as well as the cut grade it has been given. The faceting process is compulsory in determining the appearance of the final diamond. The shaped diamond is then placed in a special working utensil and moves along a disc rotating under the diamond powder called Scaife. The craftsman or machine will then create each facet within the diamond by using the Scaife to apply pressure to the diamond at particular angles.
After faceting, the job is done with the help of a wheel covered with powdered diamonds and is rapidly rotated. This stage of the polishing process of the diamond in turn eradicates all the scratches on the diamond thus giving it the shine.
After the diamond has been cut, shaped, faceted and polished, it goes through a final check. Technical professionals will then observe the diamond with other eyepieces with a view of ascertaining the rating the diamond deserves regarding its cut and polish. If the diamond has gone through this tough scrutiny, then it is time to set the diamond into perhaps a lovely diamond engagement ring.
In the inspection process, the specialists will look at several properties in the diamond that will define the quality of the cut.
We highlight the qualities of a diamond that has been expertly cut and polished:
Brilliance- Brilliance is the dispersion of white light that produces a fiery glow in a diamond. When light penetrates through the diamond, it should refract through every step of the diamond facets and then pass out through the head of the particular diamond. If the facility of cutting is done inappropriately either deeper or shallower the diamond appears to be blunt but the right cutting makes the diamond appear to be too bright.
Fire- Fire, or dispersion, is the phenomenon of figuring that the diamond can break the white light into its spectral colours, creating a breathtaking, rainbow display. The best and most workmanlike polished diamond will show various aspects of red, blue, yellow, and other colouring arising at times, best when the light is strong.
Scintillation- Clusters are about the sparkling points on the Diamond’s table and facets. If you wish to move the diamond, there should be light and dark areas of this figure. A good cut also allows the light to sparkle between these areas, making the complete diamond come to life.
Facet Arrangement- That is because positioning and the positioning of facets vary with one another in a way that dictates with which type of light the diamond is going to interact. If the facets are properly arranged, it increases the proportion of brilliance, fire, and scintillation of a diamond.
Durability- Although diamonds are hard, a good cut also means that they do not chip or even break easily. The next characteristic may be considered the durability of the stone, although it is only an assumption because your engagement ring is supposed to be worn until death do you part. Here, there will be no compromise, a well-cut diamond does not show any structural flaws that would pose a serious threat to the preservation of the beauty of your diamond.
Marlow’s Diamonds thereby boasts of providing engagement diamond rings with a perfect cut. They are all sourced to be of the best quality when it comes to their brilliance and beauty from either mining or artificial creation. This, of course, assures that diamond rings exist, ready to represent the higher promise of love.
Explore our collection of brilliantly cut diamonds for your pretty ring.
Some of the most common Q&A's
The carat is the physical weight of the diamond and not the actual measurements of the stone. We hold a huge range of different carat weights in our showrooms, in a multitude of shapes. We have one of the largest stocks of diamonds available to view in the UK, ranging from 0.20cts – 10.00 cts.
All our certified diamonds are provided with their authentication certificate and a valuation certificate for insurance purposes.
We strongly recommend you consider the GIA, IGI and HRD laboratories. Our diamonds are renowned for superb quality and all come with independent certificates from internationally recognised bodies, such as GIA.
